Multiple choice

Nematodes are _________.

  1. pseudocoelomate

  2. coelomate

  3. acoleomate

  4. haemocoelomate
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A Correct answer
Explanation

Nematodes have a pseudocoelom, which is a body cavity not fully lined by mesoderm tissue. The pseudocoelom lies between the mesoderm and endoderm, distinguishing it from a true coelom. This is a defining characteristic of nematodes (roundworms). Coelomates have a fully-lined body cavity, acoelomates lack a body cavity entirely, and haemocoelomate is not a standard term.

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